Mixing-hoe.



L. 1. BMW.

MiXiNG HOE. APPLICATION man MAR. I3. 1915.

Patented J an. 11, 1916.

LUDWIG- J. BIRN, OF CHEWELAH, WASHINGTON.

MIXING-HOE.

To all whom it may concern Be it known that I, LUDWIG J. BIRN, a citizen of the United States, residing at Chewelah, in the county of Stevens and State of \Vashington, have invented certain new and useful Improvements in Mixing-Hoes, of which the following is a speci-' fication.

This invention relates to improvements in hoes and has to do more particularly with that type of hoe which is especially adapted for mixing materials such as sand and cement, mortar and when used in the ground, it serves to thoroughly distribute the mass.

The device of my invention includes'a hoe body. composed of anopen frame work having forwardly and rearwardly disposed edge portions which serve to divide the material as it passes therethrough so as to reduce resistance toforward and rearward movement of the hoe thereby greatly lessening the amount of thrust usually applied in forcinga hoe baekwardly and forwardly through the material to be mixed.

A further feature of the invention consists in providing an open frame work the members of which diverge in opposite di rections, from the forwardly and rearwardly'disposed edges, in the direction of 'the plane of the hoe body, in such a manner that the material will -be relatively widely separated 'as the open frame work passes therethrough.

A further feature of novelty consists in providing the open framework with a lower bar having a downwardly projecting sharp edge whereby material which is being mixed in a bed, will be prevented fromescaping action of the hoe by descending to the bottom of the bed.

Other objects and features of novelty will be more fully described in connect-ion with the accompanying drawing and will be more particularly pointed out in and by the appended claims.

-In the drawing:-Figure 1 is a view in elevation of a hoe body embodying one form.of my invention. Fig. 2 is an edge view thereof showing the handle therefor.

. Likeeharacters of reference designate similar parts throughout the different figbars 2, 3 and 4, is intersected by a'plurality ures of the drawing.

As illustrated, my improved hoe comprises a hoe body 1, composed of an open framework. The framework of the hoe Specification of Letters'Patent. I Patenfed J an 11, 191.6

Application filed March 13, 1915.

Serial No. 14,147.

body is shown substantially rectangular and is composed of upper and loweralhorizontal frame members 2 and 3, respec 'ively,

and end vertical members 4. To the upper member 2, is attached or integrally formed therewith a handle attaching shank 5 which projects laterally from the plane of the bee body, in the usual way, for attachment of the ferrule Band handle 7. The frame of said hoe body is herein shown formed of bars which are diamond shaped in cross sec' tion, each bar having'forwardly and rearwardly disposed longitudinal edges, as indicated in connection with bar 4, at 8and 9. These oppositely disposed sharp edges operate toefficiently divile the material through which the hoe rame is passing.

so as greatly to reduce resistance 1, usual in the operation or movement to and frov edges 10 and 11 and the lower bar 3 has oppositely disposed sharp portions 12 and 13. Now a further feature of this-construction consists in the fact that the bars diverge from their sharp .edges. to the point of greatest cross section, as indicated in connection with bar 3 at 14: and 15. Thus it will be seen that while the sharp edges 12 i and 13 tend to separate the material through which the bar is passing, it will also'be evident that the vertical cross sectionjis sufficient to. very effectively-displace the mate rial engaged by bar'3. Bar 3 performs a further function when the hoe is used for mixing material in a mortar bed'or the like, in .that it effectively engages a the material that descends to the bottom of the bed and serves to agitate such material so as to raise it above the bottom of the bed.

and into an upper stratum of the mass. The

sharp lower or downwardly projecting edge 15, serves effectively to catch alLof the Ina-'1. terial along the bottom of the bed and pre? vent the formation of a thin inaotive layer thereon.

Theopen portion of the frame formed by Words, oppositely disposed sharp longitudb mil edges, the forward edges being indicated at 17 in l! ig. 1. These mixing bars 16 also diverge laterally from their forwardly and reorii'ertlly disposed sharp edges, as indicarted at 18 and 19, in such a manner as to materially displace the substance being mixed after the substance has been di'videdl by the sharp edges. It will be observed, the oro 5 section of lower bin- 3 is slightly greater than'that of the other bars, by reason of the fact that it is necessary to have a sharper u *l more oxtendeiilly graduated topeiing o 1:; when the hoe is used for agrises.

Now it will not only be seen that the open fr: nieworlc prevents excessive resistance roinnion to an imperforate or partially perforate hoe body but because of the peculiar fornmtion of the frame bars, their efiieiency in mining and displacing the material through which the hoe body is passed is greatly increased over more partially perforated or wl'i'olly iniperforote hfe bodies.

l Vhile have herein shown and described one specific form of my invention, 1 do not wish to be limited thereto except for suol' limitation, as the claims may import.

1 claim;

1. A. mixing hoe comprising an open frame provided With a handle, and mixing bars extending across the open portion or" said frame and of diamond cross section. and having their longitudinally extending sharp edge portions disposed. forwardly and rearwerclly with respect to the plane of the hoe, substantially as described.

2. A mixing hoe comprising a hoe body composed of an open frame including a. lower her, said lower be! being of substantially diamond. shaped cross section With one sharp elongated and disposed dowimzirdly, substantially as described.

A mixing hoe comprising a hoe body composed of an open frzunework with the fnmework portions having forwardly and l'edlwtlClly disposed sharp edges, said portions diverging from said sharp edges in plane of the hoe body, substantially as described.

In testimony whereof I aliix my signature in presence oi a witness.

LUDVVIG J. BERN.

" r Jili 

